Features: Miniature Design ": This 0.2-meter-long worm gear is a miniature designed gearboxes that is perfect for projects with limited space or requiring small equipment. 90 ° transmission device ": This transmission box can achieve 90 ° rotation, which is very suitable for car models or DIYer projects that require specific angles to transmit power. Efficient deceleration ": It is equipped with a 12 fold deceleration device that can efficiently reduce speed while increasing torques, which is important for car models or personals DIYer projects that require deceleration and improved energy efficiency. Multi functional use: This gearboxes can be widely used in various DIYer projects, including car models and other projects that require precise control or adjustment of speed and angles. Wear resistant gearboxes ": This gearboxes is crafted from metal materials, which are both wear resistant and cost-effective. For startups or manual driving enthusiasts, this is ideal to reduce costs. Specifications: Component:Metal Type:Assembly Version,Upgraded Version Package Includes: 1Set Transmission Box note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.